2019 AOAC CASP Book

AOAC O FFICIAL M ETHODS OF A NALYSIS (2012)

V OLUNTARY C ONSENSUS S TANDARDS Appendix G, p. 3

( b ) Guidance and support can be obtained from the AOAC Technical Division on Reference Materials. D. Single-Laboratory Validation ( a ) Data demonstrating response linearity, accuracy, repeatability, LOD/LOQ, and matrix scope must be present. Experimental designs to collect this data may vary with the method protocol and the intended use of the method. ( b ) Resources can be identified by the AOAC Statistics Committee. E. Reproducibility/Uncertainty and Probability of Detection ( a ) For quantitative methods, data demonstrating reproducibility and uncertainty must be present. Experimental designs to collect this data may vary with the method protocol, available laboratories, and the intended use of the method (i.e., collaborative studies, proficiency testing, etc.). ( b ) For qualitative methods, data must be present demonstrating the probability of detection at specified concentration levels as defined by the SMPR. Experimental designs to collect this data may vary with the method protocol, available laboratories, and the intended use of the method. ( c ) Guidance and support can be obtained from the AOAC Statistics Committee. F. Comparison to SMPR ( a ) Document method performance versus SMPR criteria. Note which SMPR criteria are met. For SMPR criteria not met, the ERP documents the reasoning why the method is still acceptable. ( b ) Data is present to assure the matrix and analyte scopes are covered. This is critical for methods used for dispute resolutions. G. Feedback from Users of Method ( a ) Document positive and negative feedback from users of the method during the trial period. ( b ) Feedback from users demonstrating method ruggedness should be documented. ( c ) Assess the future availability of vital equipment, reference materials, and supplies. H. ERP Recommendations to Repeal First Action Methods Recommendations to repeal First Action methods shall be accompanied with detailed reasons for the decision. The First to Final Action guidance for ERPs was approved by the OMB in December 2011 and effective as of February 1, 2012.

First Action to Final Action Methods: Guidance for AOAC Expert Review Panels

In December 2011, the Official Methods Board (OMB) approved a guidance document for ERPs to support their work as they deliberate on methods, adopt methods as Official First Action, and, subsequently, track method usage and performance between First Action status and Final Action consideration. The guideline is based on parameters of a method that the OMB will consider when deliberating on methods recommended for Final Action status. ERPs are to use this guideline in their deliberations. ERPs working within the AOAC process may recommend a First Action status method be elevated to Final Action status. Such a recommendation leverages the ERP’s high level of expertise supported by data from the initial evaluation, and results from the subsequent 2-year method performance evaluation period. The OMB receives the recommendation with supporting documentation, and determines if Final Action status is warranted. OMB’s review verifies the method process was conducted in compliance with the guidelines and protocols of the Association. For transparency and to expedite the review process, the main areas OMB will review when evaluating ERP recommendations to promote methods to Final Action are listed below. Documentation of the areas listed below will also increase confidence in method performance and assist users to properly and safely perform the ( a ) A method’s applicability to the identified stakeholder needs is best assessed by the stakeholder panel and should be a part of the process from the onset. OMB liaisons will remind stakeholder panels to maintain this focus point. ( b ) OMB may ask ERPs and stakeholder panels for feedback to improve the applicability of the method, such as potential method scope expansions and potential points of concern. B. Safety Concerns ( a ) A safety review must be performed for a method to be recognized as First Action. ( b ) All safety concerns identified during the 2-year evaluation period must be addressed. ( c ) Guidance and support can be obtained from the AOAC Safety Committee. C. Reference Materials ( a ) Document efforts undertaken to locate reference materials. Methods may still progress to Final Action even if reference materials are not available. methods at their locations. A. Method Applicability

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